Simultaneously spatially and temporally focused femtosecond vortex beams for laser micromachining

Weibo Cheng, Xiao Long Liu, Pavel Polynkin

Research output: Contribution to journalArticle

1 Scopus citations


We combine conventional beam shaping with simultaneous spatial and temporal focusing (SSTF) to generate femtosecond SSTF vortex beams. We demonstrate the utility of these beam structures by producing single-shot encryption of doughnut-shaped ablation marks on the back surfaces of glass plates. The SSTF enables this type of machining by significantly reducing the nonlinear beam distortions on propagation through the glass.

Original languageEnglish (US)
Pages (from-to)B16-B19
JournalJournal of the Optical Society of America B: Optical Physics
Issue number10
StatePublished - Oct 1 2018


ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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